Method of automatically applying a variable thickness elastomeric layer on pneumatic tire casings



May 17, 1966 R. G. HOLMAN 3,251,722

METHOD 0F AUTOMATICALLY APPLYING A VARIABLE THICKNESS ELASTOMERIC LAYER 0N PNEUMATIC TIRE CASINGS Filed May l, 1962 23 Sheets-Sheet l May 17, 1966 R. G. HOLMAN 3,251,722

METHOD OF AUTOMATICALLY APPLYING A VARIABLE THICKNESS ELASTOMERIC LAYER ON PNEUMATIC TIRE CASINGS Filed May l, 1962 23 Sheets-Sheet 2 L a# 77/1/L70/J` ra. J5.

3,251,722 HICKNEss NGS May 17, 1966 R. G. HoLMAN METHOD OF AUTOMATICALLY APPLYING A VARIABLE T ELASTOMERIC LAYER ON PNEUMATIC TIRE CASI 23 Sheets-Sheet 3 Filed May l 1962 N .SE1

INVENTOR. z/m 1MM/Mw BZM W4 May 17, 1966 HOLMAN R. G. METHOD 0F AUTOMATICALLY APPLYING A VARIABLE THICKNESS PNEUMATIC TIRE CASINGS 25 Sheets-Sheet 4.

ELAS TOMERI C LAYER ON Filed May l 1962 SP/A/ pdf/770# Flaca May 17, 1966 R. G. HOLMAN 3,251,722

METHOD OF AUTOMATICALLY APPLYING A VARIABLE THICKNESS ELASTOMERIC LAYER ON PNEUMATIC TIRE CASINGS Filed May 1, 1962 23 Sheets-Sheet 5 RYA- W4 May 17, 1966 G HOLMAN 3,251,722

R. METHOD OF AUTOMATICALLY APPLYING A VARIABLE THICKNESS ELASTOMERIC LAYER ON PNEUMATIC TIRE CASINGS 23 Sheets-Sheet 6 Filed May l, 1962 INVENTOR. a 6. 1702/1/42/ fr Arroz/VZV.

May 17, 1966 R. G. HoLMAN 3,251,722

METHOD OF AUTOMATICALLY APPLYING A VARIABLE THICKNESS ELASTOMERIC LAYER ON PNEUMATIC TIRE CASINGS Filed May 1, 1962 23 Sheets-Sheet 7 IN VEN TOR.

3,251,722 KNEss R. G. HOLMAN May 17, 1966 METHOD OF AUTOMATIOALLY APPLYING A VARIABLE THIC ELASTOMERIC LAYER ON PNEUMATIO TIRE CASINOS Filed May I 1962 23 Sheets-Sheet 8 jfl/3 .liv/6. jl.

j/J/f/ /ff JM? INVENTOR. IE/Jaap# lh/mau am, TMI

ff/:f /*faeA/M May 17, 1966 R. G. HOLMAN 3,251,722

METHOD OF AUTOMATICALLY APPLYING A VARIABLE THICKNESS ELASTOMERIC LAYER ON PNEUMATIC TIRE CSINGS Filed May 1, 1962 23 Sheets--Shee-fI 9 INVENTOR.

BY (4X, 7%4

?) ,4free/VIV.

May 17, 1966 R. G. HoLMAN 3,251,722

METHOD OF AUTOMATICALLY APPLYING A VARIABLE THICKNESS ELASTOMERIC LAYER ON PNEUMATIC TIRE CASINGS Filed May l, 1962 23 Sheets-Sheet lo INVENTOR.

'W5 inve/V54 3,251,722 xNEss R. G. HOLMAN ALLY May 17, 1966 METHOD OF AUTOMATIC APPLYING A VARIABLE THIC ELASTOMERIC LAYER ON PNEUMATIC TIRE CASINGS 25 Sheets-Sheet 11 Filed May 1, 1962 May 17, 1966 R G. HoLMAN 3,251,722 METHOD OF AUTOMATICALLY APPLYING A VARIABLE THICKNESS ELASTOMERIC LAYER ON PNEUMATIC TIRE CASINGS Filed May l, 1962 25 Sheets-Sheet 12 f oA/f lra. 2157i. y Vw {255g/'w INVENTOR.

May 17, 1966 R. G. HOLMAN 3,251,722

METHOD OF AUTOMATICALLY APPLYING A VARIABLE THICKNESS ELASTOMERIC LAYER ON PNEUMATIC TIRE CASINO-S May 17, 1966 R. G. HoLMAN 3,251,722

METHOD OF AUTOMATICALLY APPLYING A VARIABLE THICKNESS ELASTOMERIC LAYER ON PNEUMATIC TIRE CASINGS Filed May l 1962 23 Sheets-Sheet 14.

Blf-6% 77M 3,251,722 KNEss May 17, 1966 R. G, HoLMAN METHOD OF AUTOMATICALLY APPLYING A VARIABLE THIC ELASTOMERIC LAYER ON PNEUMATIC TIRE CASINGS 1962 25 Sheets-Sheet l5 Filed May l May 17, 1966 R. G. HOLMAN 3,251,722

METHOD OF AUTOMATICALLY APPLYING A VARIABLE THICKNESS ELASTOMERIC LAYER ON PNEUMATIC TIRE CASINGS Filed May l, 1962 23 Sheets--Smeel 16 lign. 24K

May 17, 1966 R. G. HOLMAN 3,251,722

METHOD OF AUTOMATICALLY APPLYING A VARIABLE THICKNESS ELASTOMERIC LAYER ON PNEUMATIC TIRE CASINGS Filed May l, 1962 23 Sheets-Sheet 17 M wat 3,251,722 IcKNEss May 17, 1966 R. G. HoLMAN APPLYING A VARIABLE TH ON PNEUMATIC TIRE CASIN GS 25 Sheets-Sheet 18 METHOD OF AUTOMATICALLY ELASTOMERIC LAYER Filed May l, 1962 Q%% @www INVENTOR. ga/@000,4 l f fw/c/ BY (am 7%@ Av/@ewig ay 17, 1966 R, G. HOLMAN 3,251,722

METHOD OF AUTOMATICALLY APPLYING A VARIABLE THICKNESS ELASTOMERIC LAYER ON PNEUMATIC TIRE CASINGS Filed May l 1962 23 Sheets-Sheet 19 frmummw.

3,251,722 BLE THICK NESS May 17, 1966 R. G. HoLMAN METHOD OF AUTOMATICALLY APPLYING A VARIA RIC LAYER ON PNEUMATIC TIRE ELASTOME 1962 CASINGS 23 Sheets-Sheerl 2O Filed May l, 

1. A METHOD OF WINDING A RIBBON OF TREAD MATERIAL ON A TIRE CASING COMPRISING THE STEPS OF SPINNING SAID CASING AROUND ITS AXIS AND SIMULTANEOUSLY PRODUCING INTERMITTENT TRANSVERSE MOVEMENTS BETWEEN SAID CASTING AND RIBBON, EACH OF SAID MOVEMENTS BEING OF A CONTROLLABLE AMOUNT AND OF SHORT DURATION LESS THAN A SINGLE PERIOD OF REVOLUTION OF THE CASING, AND SAID MOVEMENTS BEING VARIED IN AMOUNT TO DEPOSIT A TREAD ON THE CASING. 